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Product Name: Voice solutions
Product Description
Telephone
We provide telephony via satellite, connecting remote users to the
terrestrial public switched telephone network (PSTN). Simply add the
international dialling code (00) and country code to the number and dial as you
would on a normal phone.
For telephone solutions see:
Live broadcast quality audio
This is high-quality audio suitable for long periods of listening. The
quality level is achieved through digital compression via audio codecs (coder,
decoder). Compression techniques include G722, mpeg-2, and APTX, providing
varying quality as a trade-off to coding delay. Typically, radio stations use
ISDN codecs to transmit live reports from the field or run outside broadcast
from a remote location. When ISDN is not available or unreliable, Inmarsat can
be used as a hand-carried solution or add-on to a radio car. For live broadcast
solutions see:
Audio streaming
This is one-way audio feed distributed via the Internet or corporate
LAN using Internet Protocol (IP) and played on local software such as Realplayer,
Windows Media Player or Quick Time. Quality is good over relatively narrow
bandwidth links and has been adopted by radio stations to expand their reach. As
with video streaming, audio streaming offers low-cost point-to-multipoint (from
one to many) distribution.
For audio streaming solutions see:
Multiplexed channels
This enables you to fit multiple voice and data circuits over a single
data channel. Audio encoding techniques are used to digitize each voice circuit
to a required compression level. This digital information is then combined into
a single data stream and passed over an appropriate data channel.
As the first voice circuit is picked up, a data connection is
automatically established between the field and base multiplexers. Subsequent
voice circuits can be picked up and dropped as required within the available
bandwidth.
In addition to carrying voice calls, most units allow you to utilize
the remaining unused portion of the channel for regular data traffic, with
bandwidth varying dynamically. This shared data channel can provide substantial
cost savings on individual per minute services and often forms the hub of a
remote site's communications network. Primarily used within government, oil and
gas, and large corporations.
For multiplexed channel solutions see:
- BGAN
- GAN
Company Details
Inmarsat plc, parent company of Inmarsat Global Ltd, is pursuing a
business strategy designed to position it squarely at the convergence of
information technology, telecoms and mobility while it continues to serve
traditional maritime,... more
| More Products of this Company: |
Aero C, Aero H/H+, Aero I, Aero L, Broadband Global Area Network (BGAN), Data transfer solutions, Date & File transfer, E-mail, Fax, Fax solutions, FleetBroadband, Global Area Network (GAN), Inmarsat A, Inmarsat B and M, Inmarsat C and mini-C, Inmarsat D+, Inmarsat D+, Inmarsat Fleet, Inmarsat mini-C, Inmarsat mini-M, Inmarsat mini-M, Internet, mini-M Aero, Monitoring, tracking and control solutions, Networking solutions, Safety and security, Solutions for aircraft operational communications (AOC), Solutions for command and control, Solutions for the cabin, Solutions for the cockpit, Swift family of services, Tracking, Vessel Operations, Video solutions, Voice |
| Related Products: |
Aero H/H+, Aero I, Broadband Global Area Network (BGAN), Data transfer solutions, E-mail, Fax solutions, FleetBroadband, Global Area Network (GAN), Inmarsat B and M, Inmarsat Fleet, Inmarsat mini-M, Inmarsat mini-M, Internet, mini-M Aero, Monitoring, tracking and control solutions, Networking solutions, Safety and security, Solutions for aircraft operational communications (AOC), Solutions for command and control, Solutions for the cabin, Solutions for the cockpit, Swift family of services, Tracking, Video solutions, Voice |
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